PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-19516 Grafana CVE debrief

The CVE-2026-19516 vulnerability is a critical server-side request forgery (SSRF) issue in Grafana, which allows an attacker to control the destination of outbound requests using the X-Grafana-URL request header and grafana_api_request tool. This vulnerability has a CVSS score of 9.1 and is considered critical. Grafana users, administrators, and security teams should be aware of this vulnerability and take immediate action to patch or mitigate it. The CVE record was published on 2026-08-11T06:17:13.433Z and has not been modified since then. The NVD entry is currently Awaiting Analysis. To address this vulnerability, organizations should prioritize patching due to its critical severity and potential for SSRF attacks.

Vendor
Grafana
Product
Grafana MCP Server
CVSS
CRITICAL 9.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-11
Original CVE updated
2026-08-31
Advisory published
2026-08-11
Advisory updated
2026-08-31

Who should care

Grafana users, administrators, and security teams should be aware of this critical vulnerability and take immediate action to patch or mitigate it. Organizations should prioritize patching this vulnerability due to its critical severity and potential for server-side request forgery attacks. Affected operators, platform administrators, vulnerability management teams, and security teams should review the official advisory and CVE record to validate affected scope, severity, and vendor guidance.

Technical summary

The X-Grafana-URL request header and grafana_api_request tool in Grafana allow a caller to control the destination of outbound requests without proper restrictions, enabling server-side request forgery attacks. This vulnerability has a CVSS score of 9.1 and is considered critical. The fix for CVE-2026-15583 prevented the configured service-account token from being sent to unintended destinations but did not restrict the destinations themselves. Grafana users and administrators should be aware of this vulnerability and take immediate action to patch or mitigate it.

Defensive priority

Organizations should prioritize patching this vulnerability due to its critical severity and potential for server-side request forgery attacks.

Recommended defensive actions

  • Patch or upgrade to the latest version of Grafana
  • Restrict access to the Grafana instance
  • Monitor for suspicious activity
  • Implement compensating controls
  • Verify inventory for affected systems

Evidence notes

Evidence is limited; primary official records indicate a critical vulnerability in Grafana, allowing server-side request forgery due to insufficient restrictions on the X-Grafana-URL request header and grafana_api_request tool. The CVE record and NVD entry provide the most accurate and up-to-date information on this vulnerability. Defenders should verify the affected scope, severity, and vendor guidance through official advisories and CVE records.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-19516 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-19516

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-19516 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-19516

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.